Variables and Constants in Maths: Simple Guide for Class 7 to 9

Variables and constants are the building blocks of Algebra. Students in Classes 7 to 9 must understand them clearly before solving equations.

A variable is a letter that represents an unknown value. Common variables are x, y, a, and b. A constant is a number that does not change. In the expression x + 7, x is the variable and 7 is the constant.

When students understand variables and constants, equations become easier. For example, in x + y = 12, x and y are variables, while 12 is a constant.

Maths Bodhi tutors explain these concepts using simple examples so students can connect Algebra with real understanding. This helps students solve questions with confidence instead of fear.